User root is not allowed to impersonate anonymous                     

简介: 错误:bymain is not allowed to impersonate hadoop(或者         User root is not allowed to impersonate anonymou...
错误:
1 修改/home/bymain/hadoop-3.0/etc/hadoop/core-site.xml
添加 两条属性:
<property>
<name>hadoop.proxyuser.bymain.hosts</name>
<value>*</value>
</property>

<property>
<name>hadoop.proxyuser.bymain.groups</name>
<value>*</value>
</property>

bymain是当前操作的用户名
重启 hadoop
----------------------------------------------------------------------
2错误 :
Permission denied: user=hadoop, access=EXECUTE, inode="/tmp":bymain:supergroup:drwx------、
修改 tmp 权限
hadoop fs -chmod 755 /tmp
重启 hadoop
-------------------------------------------------------------------------
3错误:
Permission denied: user=hadoop, access=EXECUTE, inode="/user/hive/warehouse ":bymain:supergroup:drwx------、

修改权限
hadoop fs -chmod 755 /user/hive/warehouse

4.还有就是重启mysql服务 su 到root下 service mysqld restart
5. pas aux|grep 10000,看hiveserver2是否正在运行!!!!!
记得重启hadoop
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